- Advanced ergonomic shape improves the feel and handling of your MPX
- Easy no gunsmith installation
- Width 2.06 inches/ OAL height 2.6 inches/Internal Diameter 1.8 inches
- Lightweight rugged construction of 6061 aluminum, hard coat anodized for a lifetime of service
- Heat treated 4140 retaining clip with phosphate finish
- Includes one five slot M-Lok compatible rail section
- Patent pending
- 100% Made in the U.S.A., MI Lifetime Warranty
Installed Weight
- 4.5" - 3.0oz
- 6.5" - 5.0oz
- 8.0" - 6.6oz
- 10.5" - 8.8oz
- 14.0" - 12.1oz
29 Reviews Hide Reviews Show Reviews
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5 Quality and Fit were Outstanding, Color was a Perfect Match
Posted by Gregory Copley on Nov 10th 2022
Ordered the wrong length and returned it for the correct length. According to UPS the return was delivered 2 days ago, I am currently waiting for the verdict on accepting the return.
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5 Sig MPX 4.5” Handguard
Posted by Ben on Sep 30th 2022
So far very pleased with the quality of this handguard. A solid upgrade from the original handguard that came standard on the mpx.
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5 Love at first fit
Posted by Daniel B on Aug 18th 2022
Such a great handrail , it’s very well finished and continues the top rail seemlesly . It has plenty of room for a supressor I use a hybrid silencerco and there is room to spare . Great purchase overall
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5 Excellent product with phenomenal fit and finish.
Posted by David on Jul 6th 2022
Excellent product with phenomenal fit and finish for a very reasonable price.
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5 Midwest Industries MPX 4.5in Handguard
Posted by Dave F. on Jan 22nd 2021
This is actually my second Midwest Industries MPX Handguard. I bought the 8in version while still awaiting delivery of my new MPX-K. I liked the 8in Handguard so much that when I finally received my gun, I immediately ordered the 4.5in Handguard to replace my stock one. It looks and feels so much nicer than the standard Sig 4.5in Handguard. The Handguard retainer seems much stronger than stock, which should keep it from loosening up and rattling. Plus I have more and better options for mounting M-LOk accessories like my Surefire Mini Scout Weapons Light. Well done MidWest Industries!
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5 Very happy!
Posted by David H on Jul 30th 2020
I picked the 8" handguard to go on my MPX to use with the 4.5" barrel with a suppressor or the 8" barrel with or without suppressor. Works great with either barrel choice. Fit is solid. Highly recommended!
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5 MI MPX 10.5" Handguard M-LOK
Posted by Andrew Narayan on Jul 30th 2020
I bought this specifically to cover up my Hybrid 46 suppressor and have more grip for leverage an control. Plus its looks cool! For anyone with the SilencerCo Hybrid 46 the ASR mount gets caught up on the retaining clip. You have to release those two pins and remove the retaining clip in order to slide fully into place. Its no biggy, just a couple more steps for removing the suppressor. Other than that I can't complain! Great finish, easy install and good video tutorial on MI site on install directly under product! Made in the USA!!! This would be my 3rd hand guard purchase and MI will continue to be my 1st choice for after market hand guards.
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5 Amazing fit up
Posted by Zachary Highfill on Apr 24th 2020
I always buy my handguards from Midwest Industries and I am never disappointed. This handguard fits extremely well, there is absolutely ZERO wobble like with the OEM Sig handguards. It looks like it belongs and feels great. A little more difficult to push the front take down pin in but totally worth it. 10/10
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5 Excellent quality!
Posted by JP on Apr 24th 2020
The MPX 8.0" Handguard fits perfectly and the anodize color match is great! Now just waiting for the 10.5" handguard to come off backorder. Great job to the machine shop team!
